Answers 100% Pass
What is a dead spot? - ✔✔an area in the pool where water doesn't move
what is turnover - ✔✔occurs when an amount of water equal to the total volume of the
pool has moved through the recirculation system
what is the turnover period - ✔✔the time it takes for the total volume of water to
circulate once through the recirculation system
what is the turnover rate - ✔✔a measure of the amount of water moving through the
recirculation system in a 24 hour period of time
what is the optimum turnover rate in a new swimming pool? - ✔✔4 hours (6
turnovers/day)
what is the optimum turnover rate in a whirlpool less than 4000 liters - ✔✔15 minutes
what is the optimum turnover rate in a whirlpool 4000 liters or greater - ✔✔20 minutes
what is the optimum turnover rate in a water slide receiving pool - ✔✔1.5 hours
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 1
,what is the optimum turnover rate in a water spray park (recirculating) - ✔✔2 hours
what is the optimum turnover rate in a wading pool (recirculating) - ✔✔2 hours
how to calculate the turnover rate - ✔✔volume of the pool x number of turnovers
required per day
calculate the volume of a rectangular pool with a constant depth - ✔✔length x width x
depth
calculate the volume of a rectangular pool with variable depth - ✔✔length x width x
(depth1+depth2)/2
calculate the volume of a circular pool with constant depth - ✔✔2(radius) x 3.14 x depth
what is the flow rate? - ✔✔a measure of water volume passing through the recirculation
system over a period of time
how to calculate flow rate - ✔✔turnover rate/24 hours per day x 60 minutes/hr
what is the purpose of skimmers? - ✔✔to remove water from the pool surface for
recirculation and filtration
how much of the water being recirculated should flow to remove the maximum
contaminant load? - ✔✔80% of the water that is being recirculated
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 2
, what is a floating weir - ✔✔those little doors kept in front of the skimmers so that scum,
lint, leaves and hair cannot flow back into the pool
what angles do floating weir's operate best? - ✔✔45 degree angle
`what is a strainer basket - ✔✔baskets in the skimmer that stop debris from entering the
recirculation line
what is an equalizer line? - ✔✔they protect the recirculation pump by ensuring that the
pump is always sucking water and not air
what are overflow gutters - ✔✔what GMU pool has and it skims a larger surface than
skimmers
what is required to have with a gutter system? - ✔✔a balancing or surge tank
what does a surge tank ensure? - ✔✔that the pump pulls water and not air, and stores
water that is displaced by bathers entering the pool
where is the main drain located? - ✔✔lowest point of the pool floor
what is the purpose of the main drain? - ✔✔part of the recirculation system that
removes heavier debris that does not float, and can be used to drain the pool
what are 4 safety concerns with the main drain - ✔✔1) grates covering main drain need
to be secure to the floor
100% Pass Guarantee Katelyn Whitman All Rights Reserved © 2025 3